Mizoram is the only Lok Sabha (lower house of the Indian parliament) constituency in the Northeast Indian state of Mizoram, and covers the entire area of the state. The seat is reserved for Scheduled Tribes. Its first member of parliament (MP) was Sangliana of the Mizo Union who represented this constituency in the Fifth Lok Sabha when it became a union territory on 21 January 1972. In the 1977 election, independent politician, R. Rothuama, was elected and went on to be re-elected in 1980. Shri Lalduhoma of the Indian National Congress (INC) was elected in 1984. Mizoram became a state of India on 20 February 1987. In the next election in 1989, C. Silvera also of the INC was elected. He went on to win the seat in the next two elections, serving from 1989–98 as its MP. Independent candidate H. Lallungmuana was elected in 1998 by a victory margin of only 41 votes. From 1999 to 2009, this constituency was represented for two terms by politician, Vanlalzawma, firstly as an independent candidate and then as a member of the Mizo National Front. As of the 2014 elections, this constituency's MP is C. L. Ruala of the INC who has represented this seat since 2009. The most successful party in this constituency is the INC who have won 6 times out of the 12 elections held.